Highlights: The Porsche 964 is the company's internal name for the Porsche 911 manufactured and sold between 1989 and 1994. Designed by Benjamin Dimson through January 1986, it featured significant styling revisions over previous 911 models, most prominently the more integrated bumpers. It was the first car to be offered with Porsche's Tiptronicautomatic transmission and all wheel drive as options.
A Modern Day Classic:
The 964 was considered to be 85% new as compared to its predecessor, the Carrera 3.2. The first 964s available in 1989 were all wheel drive equipped "Carrera 4" models; Porsche added the rear wheel drive Carrera 2 variant to the range in 1990. Both variants were available as a coupé, Targa or Cabriolet. The 964 Carrera was the last generation sold with the traditional removable Targa roof until the 2011 991 (993, 996, and 997 versions used instead a complex glass-roof "greenhouse" system). A new naturally aspiratedengine called the M64 was used for 964 models, with a flat-6displacement of 3.6 litres. Porsche substantially revised the suspension, replacing torsion bars with coil springs and shock absorbers. Power steering and ABS brakes were added to the 911 for the first time; both were standard. The exterior bumpers and fog lamps became flush with the car for better aerodynamics. A new electric rear spoiler raised at speeds above 50 mph (80 km/h) and lowered down flush with the rear engine lid at lower speeds. A revised interior featured standard dual airbags beginning in late 1989 for all North American production 1990 MY cars. A new automatic climate control system provided improved heating and cooling. Revised instrumentation housed a large set of warning lights that were tied into the car's central warning system, alerting the driver to a possible problem or malfunction. EngineEngine design: Air/oil-cooled, horizontally opposed, dry-sump lubrication, rear-mounted Engine displacement: 3,600 cc (220 cu in) Cylinders: Six Bore and stroke: 100 x 76.4 mm (3.94 x 3.01 in) Compression ratio: 11.3 : 1 Fuel/ignition: Electronic fuel injection, DME controller, with twin-spark with knock regulation Crankshaft: Forged, seven main bearings Block and heads: aluminum alloy Valve Train: Single Overhead cam (Sohc)- one per bank, double chain drive Power: 184 kW/247 hp (SAE net)/250 PS (DIN) at 6,100 rpm Torque: 310 N·m/228 lb·ft at 4,800 rpm Engine speed limitation: 6,700 rpm ChassisThe suspension was redesigned using coil springs instead of torsion bars, the first major engineering changes since the original 911. The front suspension used MacPherson struts, a system that has continued for all subsequent versions, but the rear suspension retained semi-trailing arms. PerformanceTop speed: 163 mph (261 km/h), 159 mph (256 km/h) (Tiptronic) 0-60 mph: 5.5 s (manual transmission), 6.2 s (Tiptronic) 1/4 mile: 13.6 s (C2), 14.0 s (Tiptronic), 14.1 s (C4) Coefficient of drag: 0.32 Fuel consumption approx 24 mpg[vague]